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From "Doug Cutting (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-6422) permit RPC protocols to be implemented by Avro
Date Wed, 09 Dec 2009 20:14:18 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-6422?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12788287#action_12788287
] 

Doug Cutting commented on HADOOP-6422:
--------------------------------------

My idea is to use a convention similar to that of HDFS file-system implementations.  The property
name would be rpc.impl.<protocolName>, and its values would name an implementation of
an RPC system.  We'd modify RPC.java to be a factory for different RPC implementations.  The
central methods of an RPC implemetation are getProxy() and getServer().  This interface would
be package-private, so we would not encourage others to create new RPC implementations.

> permit RPC protocols to be implemented by Avro
> ----------------------------------------------
>
>                 Key: HADOOP-6422
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6422
>             Project: Hadoop Common
>          Issue Type: New Feature
>          Components: ipc
>            Reporter: Doug Cutting
>            Assignee: Doug Cutting
>             Fix For: 0.22.0
>
>
> To more easily permit Hadoop to evolve to use Avro RPC, I propose to change RPC to use
different implementations for clients and servers based on the configuration.  This is not
intended as an end-user configuration: only a single RPC implementation will be supported
in a given release, but rather a tool to permit us to more easily develop and test new RPC
implementations.  As such, the configuration parameters used would not be documented.

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